Cyclometer.



No 645,201. Patented Mar. 13, I900. L. J. BURDICK.

CYCLUMETER.

(Application filed Mar. 30, 1898.)

2 Sheets-sheaf 1-.

(No Model.)

No. 645,20l. Patented Ma l3, I900.

L. J. BURDICK.

CYCLOMETER.

(Application filed Mar. 30, 1898.) (J10 Model.) 2 Sheets$hefif 2.

nmmmf Wit esses: lgvegton,

UNITED STATES PATENT other.

LE6 J. BURDIOK, OF STURGIS, MICHIGAN.

oYoLoMETER.

SPECIFICATION formingpart of Letters Patent No. eaaaoi, dated March 13,1900'.

Application filed March 30, 1898. Serial No. 675,823. (No model.)

To all whom it may concern:

Be it known that I,LEO J. BURDICK,a citizen of the United States,residing at the city of Sturgis, in the county of St. Joseph and Stateof Michigan, have invented certain new and useful Improvements inOyclometers or Register Mechanism, of which the following is aspecification.

This invention relates to improvements in cyclometers and registermechanisms in general. It relates particularly to such improvements onthe structure shown in myformer United States patents issued August 24,1897, Nos. 588,727 and 588,726, and to the structure illustrated in myapplication for a patent for cyclometers and register mechanisms filedAu gust 24, 1897, Serial No. 649,408.

The objects of this invention are, first, to provide an improved simpleand efficient regist-er mechanism; second, to provide an improvedtransfer mechanism capable of having its parts actuated by cams formedin the shaft; third, to provide an improved setback means for moving thenumber-wheels to the zero-point after an amount has been registered,and, fourth, to provide an improved bracket for attaching a cyclometerto a bicycle which is very compact and easily adjusted.

Further objects will definitely appear in the detailed description tofollow.

I accomplish these objects of my invention by the devices and meansdescribed in this specification.

The invention is definitely pointed outin the claims. The structure isillustrated in the accompanying drawings, forming a part of thisspecification, in which Figure 1 is a longitudinal sectional Viewthrough one of my improved cyclometers, taken on line 1 1 of Figs. 2 and3. Fig. 2 is an end elevation of the structure from the right hand ofFig. 1, the cap and actuatingwheel being removed. Fig. 3 is a transversesectional elevation taken on a line corresponding to line 3 3 of Fig. 1,looking in the direction of the little arrows at the ends of thesection-lines. Fig. 4 is an enlarged transverse detail sectionalelevation taken on a line corresponding to line 4 4 of Fig. 3, showingthe details of construction of the actuating-wheel and shaft from theback. Fig. 5 is an enlarged detail sectional view taken on line 5 5 ofFig. 3.

Fig. 6 is a detail side elevation of the main shaft removed. Fig. 7 isan enlarged detail perspective View of one of the main numberwheels.Fig. 8 is an elevation of one of the number-wheels, taken looking fromthe right in Fig. 1. Fig. 9 is a detailed perspective view of theinternal gear-Wheel K, through which the initial mechanism is actuated.Fig. 10 is an enlarged detail perspective view of the spring E E withits wheel E, carried by the gear-wheel E. Fig. 11 is an enlarged detailView of the inside of the thumb nut or button for actuating thesetback-gear. Fig. 12 is a side elevation of the same, showing theinside and means for retaining the same in proper actuating position.Fig. 13 is an en'- larged detail elevation of a bracket connected to thecyclometer. Fig. 14 is an enlarged detail elevation taken on thesection-line appearing in Fig. 13. Fig. 15 is an enlarged detailperspective view of one of the wedge-shaped screw-threaded nuts usedwith the attaching device.

In the drawings similar letters of reference refer to similar partsthroughout the several Views.

Referring to the lettered parts of the drawings, A represents theoutside, and A A" are the ends, of the case and afford means forretaining the shell in place.

B is the main shaft, to which the ends are secured by suitable screws2', the shaft serving as the main support for all parts.

I have shown the structure with reference for use as a cyclometer havingthe star-wheel D, with a ratchet connection P, notched ring F", and likeparts, with hunting-tooth gear, having a projecting tooth F, all thesame as in my former patent, No. 588,727, and in my patent application,Serial No. 649,408, for cyclometers and register mechanism abovereferred to. As there is nothing new in this connection it will not bereferred to further.

On the spring E is a projecting tooth E. The spring E is secured to thewheel E, thereby giving an elastic connection for the tooth; but anysuitable means might be employed, so that its elasticity is preserved.The initial number-wheelis provided with the teeth 0, so that it cantransfer from the initial transfer mechanism exactly the same as thatshown in my patent application above referred to.

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The remaining number-wheels O are each provided with a projecting hubNon the shaft, having notches formed in the edges thereof to act thesame as internal gears, with an open space in the same formed byomitting one tooth. On the face of the web of each wheel gear-teeth Oare punched out to serve for actuating the same by the transfermechanism. On the outward face of each wheel is the wing G, secured by asuitable rivet e. Projecting out from the end of the spring is the toothG to engage the teeth 0 of the next higher wheel to actuate it at properintervals. A pin G projects radially inward intoa cam-groove of theshaft provided for each, hereinafter to be described. In thisconstruction I will state that the teeth 0 on each wheel are ten innumber, making the same operate by ten consecutive steps. The cams inthe shaft are made zigzag, so that the pins G fitting into the sameserve as stops and retain the wheel in its correct position at eachsuccessive step. At one point K of the cams the teeth G, through thepins G, are held outwardly, thus holding the teeth G out into engagementwith the teeth 0 of the next higher numberwheels, causing each of themto move one step on each revolution of the next adjacent lowernumber-wheel. There is a slight notch at the point K, leaving the number-wheel exactly in the correct position during its transition.

Supported in suitable slots or kerfs with the main shaft G are setbackwheels L. These are carried on a suitable shaft I, supported on the mainshaft and are guided thereby. These setback-wheels are provided withexternal gear-teeth adapted to engage in the teeth on hubs N. Each ofthe number-wheels can be actuated by rotating its setback-gear L. Theshaft I extends through all of these gears and is held normally inwardby the opening I at the inner side of the shaft. Adapted to engage eachnumberwheel is a pin I, which serves to engage the setback-wheels L torotate them in one direction. The spring on the shaft causes the pin Ion the shaft to act as a pawl to rotate the same.

The shaft I is rotated by a button J, just on the outside of the casingA. This button is provided with the inwardly-projectingportion J, havingnotches therein to correspond to the teeth on the setback-gears torotate the same to their initial position to engage the gears on thehubs of the number-wheels to mesh with them properly.

To set the number-wheels in their initial position, the button J isrotated toward the direction in which the number-wheels operate, and thepins 1 engage their respective setback-wheels, owing to the fact thatthe spring I forces the same against them and rotates the same, and thebutton should be rotated until zero shows on each number-wheel. Then thesame is set to the initial position.

When the number-wheels have been set back to the zero-point, the buttonis released and the pin J engages in the notches of the wheel J" andreturns it in correct position.

I prefer to attach my improved register mechanism when used as acyclometer to a bicycle by the bracket clearly appearing in Figs. 13 and14. To the under side of the cyclometer lugsRaresecured. (See Figs.3and13.) These are dovetailed in form to receive the bracket between them.The bracket has a vertical portion T for attachment to the forward axleand a laterally-projecting portion T, bent into a square tubular formopen at the top and having its edges T T slightly outturned to engagethe dovetail portions R R on the cyclometer. A threaded nut S and atapering square washer S are inserted in the opposite ends of thetubular portion and are adapted to turn together by the threaded bolt Uthrough the same. From this it will be observed that by screwing thebolt the nuts S S will be drawn together and the cyclometer supported,and the cyclometer can be adjusted on the bracket into proper relationwith the bicycle-wheel. When the screw or bolt is again tightened, itwill draw the wedge shaped'nut and washer together, expanding the same,and positively engage the dovetail lugs R R on the barrel of thecyclometer. In

this connection, I desire to state that the,

structure can be considerably varied in its details Without departingfrom my invention.

If the nuts are tapering and enter a properly-constructed tube they neednot necessarily be square, but of any other form that will wedge intoand expand the tube into a positive engagement. 'lhebracketitsel'fneednot be made up of sheet metal, but it is much preferred, though it canbe cast into the preferred form to accomplish the desired result.

Having thus describedmy improved cyclometer, I desire to state that itis capable of many variations. The transverse zigzag cam around theshaft might be formed by separate pieces placed thereon, though bysodoing all of the immense advantages secured (having the same objectserve as shaft and trans fer mechanism) would be lost. I also desire tostate in this connection that other means might be employed foractuatingall of the setback-gears at once, and that they all might be releasedand operate independently and secure the same results I have hereattained, and that this setback gear might be employed with cyclometersshown in my former patents, and, on the other hand, the transfermechanism which I have here shown might be utilized in connection withthe setback mechanism shown in my former patent application. WVhile Ihave shown this cyclometer,

in its most approved form, I am aware that many changes might be made.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

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1. In a cyclometer or register mechanism, the combination of a maincentral shaft of comparatively-large diameter having transverse zigzagcam-grooves K thereon and having transverse kerfs; a casing surroundingthe same having heads secured to said shaft; number-wheels havingprojecting hubs with gear-teeth one of which is cut away, supported onsaid shaft, and having gear-teeth within the outer rim on one side; aspring secured to the Web of each of said wheels outside the hub havinga laterally-projecting tooth and an inwardly-projecting pin extendingthrough the hub to engage within the zigzag cams; setback-wheelssupported in the kerfs and adapted to engage the teeth formed in thehubs of the number-wheels; a shaft with ratchet connection extendingthrough said setbackwheels with proper means of locating the same torotate the setback-wheels to set the number-wheels at zero, for thepurpose specified. I

2. In a cyclometer or register mechanism, the combination of a mainshaft having transverse zigzag cams formed therein; numberwheels havingteeth within their outer rims and a spring secured to the web of each ofsaid number-wheels having a laterally-projecting tooth to engage theteeth of the next higher number-wheel; and an inwardly-projecting pinextending through a slot in the hub to engage in the zigzag cams,coacting together for the purpose specified.

3. In a cyclometer or register mechanism, the combination of a suitableshaft; transverse cam-grooves formed within; numberwheels; a movabletooth carried by each number-wheel to engage the next highernumberwheels at intervals and a pin extending from said movable teethinto the transverse cams to be actuated thereby on the rotation of thenumber-wheels, for the purpose specified.

4. The combination of a shaft, zigzag transverse cams; movable teeth andconnections to engage the zigzag cams, coacting together for the purposespecified.

5. In a cyclometer the combination of a central shaft having kerfstherein; independent setback-wheels within said kerfs; suitable means ofengaging the setback-wheels to rotate the same and number-wheels havingin ternal gears with an open space to be engaged by said setback-gearsto enable the turning ofthe cyclometer to zero, for the purposespecified.

6. Ina bracket for supporting cyclometers, the combination of aprojecting portion for adjustment to the bicycle, and a tubular portionopened at the top with the edges slightly outturned; tapering nuts forinsertion into the square tubular portion and a screw to draw the sametogether to expand the outturned portion into engagement with suitablelugs on the cyclometer.

7. The combination, in a bracket for supporting a cyclometer of atubular portion opened at one side with outwardly-turned engagingpart-s; tapering nuts forinsertion into the tubular portion and a screwor bolt for drawing the same together for expanding the tube intoengagement with a suitable side of the cyclometer for the purposespecified.

In witness whereof I have hereunto set my hand and seal in the presenceof two Witnesses.

LEO J. BURDICK.

Witnesses:

FRANK L. BURDIoK, CARRIE E. TENNENT.

